def find_above_average_weights():
    # 获取用户输入
    input_str = input("请输入小朋友们的体重，用逗号分隔: ")

    # 将输入字符串转换为浮点数列表
    weights = [float(w) for w in input_str.split(',')]

    # 计算平均体重
    average = sum(weights) / len(weights)

    # 找出高于平均值的体重
    above_average = [w for w in weights if w > average]

    # 输出结果
    if above_average:
        # 将结果转换为字符串，保留一位小数
        result = ",".join([f"{w:.1f}" for w in above_average])
        print(result)
    else:
        print("所有小朋友的体重都在平均值以下")


# 调用函数
find_above_average_weights()